Choosing the kind with skin may show that you are very delicate, a little sentimental, good at discovering things and beauty around you, very polite and sincere to people, gentle and quiet, and quiet.

Choosing the kind with metal may show that you are generous, informal, enterprising, passionate, energetic, tireless, love to make friends, have many friends, love sports and like the feeling of sweating.

Psychology is a science that studies human psychological phenomena and their psychological functions and behavioral activities under their influence, taking into account outstanding theories and applications.

Psychology includes basic psychology and applied psychology, and its research involves many fields such as perception, cognition, emotion, thinking, personality, behavior habit, interpersonal relationship, social relationship, artificial intelligence, IQ, personality and so on, as well as many fields of daily life-family, education, health, society and so on. On the one hand, psychology tries to explain the basic behavior and psychological function of individuals with brain operation, and at the same time, psychology also tries to explain the role of individual psychological function in social behavior and social motivation.

In addition, it is also related to neuroscience, medicine, philosophy, biology, religion and other disciplines, because the physiological or psychological effects discussed by these disciplines will affect the individual's mind. In fact, many humanities and natural disciplines are related to psychology, and human psychological activities are inseparable from human living environment.

Psychologists engage in basic research to describe, explain, predict and influence behavior. Applied psychologists also have a fifth purpose-to improve the quality of human life. These goals form the basis of psychology.